On Saturday 05 July 2008 10:28:54 Bram wrote:
>  Citeren Marc Lehmann <perlbug-followup@[...].org>:
>  > -----------------------------------------------------------------
>  > [Please enter your report here]
>  >
>  > When Math::BigInt uses GMP as backend, it gives completely bogus
>  > results:
>  >
>  >    perl -MMath::BigInt=lib,GMP -e 'my $b = 0xc0010203; my $m =
>  > Math::BigInt->new (2) ** 24 - 1; warn $m + $b'
>  >    -105689855 at -e line 1.
>  >
>  >    perl -MMath::BigInt=lib,GMP -e 'my $b = 0xc0010203; my $m =
>  > Math::BigInt->new (2) ** 32 - 1; warn $m + $b'
>  >    3221291522 at -e line 1.
>  >
>  > This only seems to happen with 32-bit perls.

I am pretty sure that is because the value is in-between treated as 
signed vs. unsigned integer and thus arrives wrongly in libgmp.

Can you please run:

	perl -Mbignum,l,GMP=v

?

All the best,

Tels

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